"A well regulated militia, being necessary to the security of a free state, the right of the people to keep and bear arms, shall not be infringed."
It's simple grammar. This isn't only about a militia. These guys weren't dumb, they could tell that there would be a time when we wouldn't have/need a militia anymore, and appropriately worded this amendment to make sure that, even after our militia is gone, we still are guaranteed a way to defend ourselves from assault/oppressive government/criminals/whatever and a way to hunt game. Not to mention, repealing the second amendment would actually allow the government to completely take away all guns, so when criminals come out with them, there's nothing to do about it. Guy breaks into your house with a gun and you don't have one. What do you do? You die. If you had a gun, he'd more likely be dead. The problem actually is not guns. The problem is not that the amendment is invalid. The problem is there's not enough insane asylums/smart people to actually be safe without guns. If we had less insane people/dumb people/people with mental disabilities, we'd have a lot less violence, because those are the people who kill people. Guns do not kill people. Insanity kills people. We must be limiting insanity, not guns. In fact, limiting guns is illegal. "...shall not be infringed." And there you go.
Did I win yet?